Ib biology sl Study guides, Class notes & Summaries

These notes contain everything from the IB Biology SL syllabus, including cellular biology, molecular biology, ecology, genetics, evolution and human physiology. Includes diagrams and charts as well. Super detailed, ensured I got a 7/7 on Biology.

This Biology IA looks researches "Pupillary light reflex under 5 levels of light intensity exposure". It has scored full marks in 2021 year's IB session

IB biology past essay questions HL and SL all units and mark scheme 2023 (A+) Outline what is meant by the trophic level of an organism with three examples from one named habitat. (4 max) - Answer-feeding level for an organism in a food chain naming of habitat (1 mark) naming three trophic levels correctly (1 mark) three examples forming a food chain from the named habitat (1 mark) 2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms obtain energy. (6 ma...

What is the cell theory? 1. cells are the basic unit of life 2. All living things are made up of cells 3. all cells come from pre--existing cells. What is the difference between the structure of all prokaryotes and all eukaryotes? prokaryotes has a nuclei and eukaryotes has nuclear envelope A cell has cytoplasm, a cell wall, naked DNA and ribosomes. Based on this information, what type of cell could this be? A bacterium Which pair of features is correct for both a human l...

IB biology past essay questions HL and SL all units and mark scheme 2023 (A+) Outline what is meant by the trophic level of an organism with three examples from one named habitat. (4 max) - Answer-feeding level for an organism in a food chain naming of habitat (1 mark) naming three trophic levels correctly (1 mark) three examples forming a food chain from the named habitat (1 mark) 2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms obtain energy. (6 ma...

IB biology past essay questions HL and SL all units and mark scheme 2023 (A+) Outline what is meant by the trophic level of an organism with three examples from one named habitat. (4 max) - Answer-feeding level for an organism in a food chain naming of habitat (1 mark) naming three trophic levels correctly (1 mark) three examples forming a food chain from the named habitat (1 mark) 2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms obtain energy. (6 ma...

The document goes in great detail about the ib biology SL and HL topics; Water, Origin of cells, cell structure, virsues, carbohydrates and lipids, organelles and compartementalization, diversity of organisms, membranes, cell specialization, stem cells etc. It's almost 200 pages of the topics descriptions, diagrams, drawings, explanations, resources and videos. The information contains both the old syllabus and the new 2025 ib biology syllabus. The black notes are class notes, while the red not...

IB Biology diagrams SL&HL (received 6 HL biology)

The Documents provide a good resource for quick revision and will help with IB Biology HL or SL